Cast protector



FIG. 1 is a front elevation view of a cast protector showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

It is understood that the broken lines within the claimed design indicates stitch lines, which form part of the claim. 

The ornamental design for a cast protector, as shown and described. 